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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.hardware.display;
import static java.lang.annotation.RetentionPolicy.SOURCE;
import android.annotation.IntDef;
import android.annotation.Nullable;
import android.graphics.Rect;
import android.text.TextUtils;
import java.lang.annotation.Retention;
import java.util.Objects;
/**
* Describes how the pixels of physical display device reflects the content of
* a logical display.
* <p>
* This information is used by the input system to translate touch input from
* physical display coordinates into logical display coordinates.
* </p>
*
* @hide Only for use within the system server.
*/
public final class DisplayViewport {
// Viewport constants defined in InputReader.h.
public static final int VIEWPORT_INTERNAL = 1;
public static final int VIEWPORT_EXTERNAL = 2;
public static final int VIEWPORT_VIRTUAL = 3;
@IntDef(prefix = { "VIEWPORT_" }, value = {
VIEWPORT_INTERNAL, VIEWPORT_EXTERNAL, VIEWPORT_VIRTUAL})
@Retention(SOURCE)
public @interface ViewportType {};
// True if this viewport is valid.
public boolean valid;
// True if this viewport is active.
public boolean isActive;
// The logical display id.
public int displayId;
// The rotation applied to the physical coordinate system.
public int orientation;
// The portion of the logical display that are presented on this physical display.
public final Rect logicalFrame = new Rect();
// The portion of the (rotated) physical display that shows the logical display contents.
// The relation between logical and physical frame defines how the coordinate system
// should be scaled or translated after rotation.
public final Rect physicalFrame = new Rect();
// The full width and height of the display device, rotated in the same
// manner as physicalFrame. This expresses the full native size of the display device.
// The physical frame should usually fit within this area.
public int deviceWidth;
public int deviceHeight;
// The ID used to uniquely identify this display.
public String uniqueId;
// The physical port that the associated display device is connected to.
public @Nullable Integer physicalPort;
public @ViewportType int type;
public void copyFrom(DisplayViewport viewport) {
valid = viewport.valid;
isActive = viewport.isActive;
displayId = viewport.displayId;
orientation = viewport.orientation;
logicalFrame.set(viewport.logicalFrame);
physicalFrame.set(viewport.physicalFrame);
deviceWidth = viewport.deviceWidth;
deviceHeight = viewport.deviceHeight;
uniqueId = viewport.uniqueId;
physicalPort = viewport.physicalPort;
type = viewport.type;
}
/**
* Creates a copy of this DisplayViewport.
*/
public DisplayViewport makeCopy() {
DisplayViewport dv = new DisplayViewport();
dv.copyFrom(this);
return dv;
}
@Override
public boolean equals(@Nullable Object o) {
if (o == this) {
return true;
}
if (!(o instanceof DisplayViewport)) {
return false;
}
DisplayViewport other = (DisplayViewport) o;
return valid == other.valid
&& isActive == other.isActive
&& displayId == other.displayId
&& orientation == other.orientation
&& logicalFrame.equals(other.logicalFrame)
&& physicalFrame.equals(other.physicalFrame)
&& deviceWidth == other.deviceWidth
&& deviceHeight == other.deviceHeight
&& TextUtils.equals(uniqueId, other.uniqueId)
&& Objects.equals(physicalPort, other.physicalPort)
&& type == other.type;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result += prime * result + (valid ? 1 : 0);
result += prime * result + (isActive ? 1 : 0);
result += prime * result + displayId;
result += prime * result + orientation;
result += prime * result + logicalFrame.hashCode();
result += prime * result + physicalFrame.hashCode();
result += prime * result + deviceWidth;
result += prime * result + deviceHeight;
result += prime * result + uniqueId.hashCode();
if (physicalPort != null) {
result += prime * result + physicalPort.hashCode();
}
result += prime * result + type;
return result;
}
// For debugging purposes.
@Override
public String toString() {
return "DisplayViewport{type=" + typeToString(type)
+ ", valid=" + valid
+ ", isActive=" + isActive
+ ", displayId=" + displayId
+ ", uniqueId='" + uniqueId + "'"
+ ", physicalPort=" + physicalPort
+ ", orientation=" + orientation
+ ", logicalFrame=" + logicalFrame
+ ", physicalFrame=" + physicalFrame
+ ", deviceWidth=" + deviceWidth
+ ", deviceHeight=" + deviceHeight
+ "}";
}
/**
* Human-readable viewport type.
*/
public static String typeToString(@ViewportType int viewportType) {
switch (viewportType) {
case VIEWPORT_INTERNAL:
return "INTERNAL";
case VIEWPORT_EXTERNAL:
return "EXTERNAL";
case VIEWPORT_VIRTUAL:
return "VIRTUAL";
default:
return "UNKNOWN (" + viewportType + ")";
}
}
}
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